// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_COMPOSITOR_TRANSFORM_ANIMATION_CURVE_ADAPTER_H_
#define UI_COMPOSITOR_TRANSFORM_ANIMATION_CURVE_ADAPTER_H_

#include "base/macros.h"
#include "base/time/time.h"
#include "cc/animation/animation_curve.h"
#include "ui/compositor/compositor_export.h"
#include "ui/gfx/animation/tween.h"
#include "ui/gfx/transform.h"
#include "ui/gfx/transform_util.h"

namespace ui {

class COMPOSITOR_EXPORT TransformAnimationCurveAdapter
    : public cc::TransformAnimationCurve {
public:
    TransformAnimationCurveAdapter(gfx::Tween::Type tween_type,
        gfx::Transform intial_value,
        gfx::Transform target_value,
        base::TimeDelta duration);

    ~TransformAnimationCurveAdapter() override;

    // TransformAnimationCurve implementation.
    base::TimeDelta Duration() const override;
    scoped_ptr<AnimationCurve> Clone() const override;
    gfx::Transform GetValue(base::TimeDelta t) const override;
    bool AnimatedBoundsForBox(const gfx::BoxF& box,
        gfx::BoxF* bounds) const override;
    bool AffectsScale() const override;
    bool IsTranslation() const override;
    bool PreservesAxisAlignment() const override;
    bool AnimationStartScale(bool forward_direction,
        float* start_scale) const override;
    bool MaximumTargetScale(bool forward_direction,
        float* max_scale) const override;

private:
    gfx::Tween::Type tween_type_;
    gfx::Transform initial_value_;
    gfx::Transform target_value_;
    gfx::DecomposedTransform decomposed_initial_value_;
    gfx::DecomposedTransform decomposed_target_value_;
    base::TimeDelta duration_;

    DISALLOW_ASSIGN(TransformAnimationCurveAdapter);
};

class COMPOSITOR_EXPORT InverseTransformCurveAdapter
    : public cc::TransformAnimationCurve {
public:
    InverseTransformCurveAdapter(TransformAnimationCurveAdapter base_curve,
        gfx::Transform initial_value,
        base::TimeDelta duration);

    ~InverseTransformCurveAdapter() override;

    base::TimeDelta Duration() const override;
    scoped_ptr<AnimationCurve> Clone() const override;
    gfx::Transform GetValue(base::TimeDelta t) const override;
    bool AnimatedBoundsForBox(const gfx::BoxF& box,
        gfx::BoxF* bounds) const override;
    bool AffectsScale() const override;
    bool IsTranslation() const override;
    bool PreservesAxisAlignment() const override;
    bool AnimationStartScale(bool forward_direction,
        float* start_scale) const override;
    bool MaximumTargetScale(bool forward_direction,
        float* max_scale) const override;

private:
    TransformAnimationCurveAdapter base_curve_;
    gfx::Transform initial_value_;
    gfx::Transform effective_initial_value_;
    base::TimeDelta duration_;

    DISALLOW_ASSIGN(InverseTransformCurveAdapter);
};

} // namespace ui

#endif // UI_COMPOSITOR_TRANSFORM_ANIMATION_CURVE_ADAPTER_H_
